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GAS TURBINE ENGINES AND THEIR APPLICATIONS III COURSE IDENTIFICATION AND APPLICATION INFORMATION

Code Name of the Course Unit Semester In-Class Hours (T+P) Credit ECTS Credit
GMY443 GAS TURBINE ENGINES AND THEIR APPLICATIONS III 7 8 6 7

Objectives and Contents

Objectives: This course aims to provide comprehensive knowledge of the components, systems, and applications of gas turbine engines. Students will gain an understanding of the engine's air, ignition, indicator, and power augmentation systems, as well as the structure and operating principles of turboshaft and turbo-prop engines, thereby grasping the maintenance and repair processes.
Content: This course is designed to enhance the technical knowledge of licensed aircraft maintenance technicians on advanced systems and sub-components of gas turbine engines. The course content is structured in accordance with EASA Part-66 Module 15, and complies with the SHT-66 Instruction issued by the Directorate General of Civil Aviation (SHGM) as well as EASA Part-145 maintenance standards. In the Gas Turbines III course, advanced-level technical instruction is provided on air systems, starting and ignition systems, engine indication systems, power augmentation systems, and the structural and operational characteristics of turboprop and turboshaft engines. Within the air systems section, the operating principles of engine internal cooling, sealing systems, external air services, and anti-icing systems are explained in detail. The starting and ignition systems section introduces the components responsible for engine start-up and ignition, with particular emphasis on maintenance considerations and critical inspection points. The engine indication systems section examines systems that display key engine parameters, including exhaust gas temperature (EGT), inter-turbine temperature (ITT), engine pressure ratio (EPR), oil and fuel pressures, engine speeds (N1/N2), vibration, and torque. In the power augmentation systems section, the effects of water injection, water-methanol injection, and afterburner systems on engine performance are discussed. The turboprop engines section covers engine types, reduction gearbox systems, engine–propeller control mechanisms, and overspeed protection systems. In the turboshaft engines section, power transmission, gearbox assemblies, clutches, and control systems are introduced and analyzed from a maintenance-oriented perspective.